Island



J. HARRINGTON.

TUBULAR RESONATOR.

(No Model.)

. 9,841. Patented Sept 18, 1888.

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N. PETERS. Phato-Lnnognph'r. Wanhi UNITED, STATES PATENT OFFICE.

JOHN HARRINGTON, OF COVENTRY, COUNTY OF WARWICK, ENGLAND, AssICNOR TO WALTER H. DURFEE, OE PROVIDENCE, RHODE IsLAND.

TUBULAR RESONATOR.

SPECIFICATION forming part of Letters Patent No. 389,841, dated September 18, 1888.

Application filed October 10, 1887. Serial No. 251,912. (No model.) Patented in England October .28, 1884, No. 14,270; in

Belgium May 23, 1885, No. 68,994, and in France May 23, 1885, No. 169,139.

To all whom it may concern:

Be it known that I, JOHN HARRINGTON, of Coventry, countyof Warwick, England, have invented an Improvement in Tubular Resonators, (the same having been patented to me in England under date of October 28, 1884, No. 14,270, and in France under date of May 23, 1885, No. 169,139, and in Belgium under date of May 23, 1885, No. 68,994,) of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts.

This invention has for its object the employment of a tube as a resonator to take the place of Ordinary bells or gongs, a tube of a suitable metal being more cheaply made than a gong or hell of usual shape.

In accordance with my invention a suitable metal tube, to be used to constitute the tubular resonator, is suspended near one end by a preferably non-metallic or non-sonorous link.

The link may be attached to a cross bar or arm of a suitable frame, bracket, or support, so that the tube struck by a hammer ready at hand will be free to vibrate and emit a musical sound or note, the note depending upon the diameter audlength of the tube, and the volume of sound or its quality as to loudness or softness depending upon the force of the blow given to the tube.

In another application, Serial No. 20l,880, (and now Patent No. 372,849, issued November 8, 1887,) filed by me June 11, 1886, I have shown and described a tube or tubes combined with a hammer or series of hammers which are operated automatically. The matter excepted from the scope of said patent by the concluding paragraph of the specification thereof is a manually-struck tube or a series of tubes which are designed as a substitute for gongsor bells generally, and without reference to clock-chimes, as distinguished from a tube or tubes struck or sounded automatically by mechanism forming part of the organization. I

Figure 1 in elevation represents a series of tubular resonators suspended in accordance with my invention. Fig. 2 shows a modification of my invention wherein but a single tube V is used, and Fig. 3 yet another modification of a single tube.

Referring to the drawings, A represents an upright having extended from it a suitable bracket or arm, as B, from or below which depends a connecting-link, as 0, preferably of catgut or other equivalent material, the said link being passed through holes made in the tubular resonator D, consisting of a suitable metal tube. The holes to receive the links 0 are made through the tube at a little distance fromits upper end, so as not to interfere with the full vibration of the tube when emitting a musical note, as it will do when struck by a hammer, as E, which, for convenience, may be hung upon a suitable book, as

F, preferably secured to the upright A.

In Fig. 1 I have shown the bracket B as supported upon two uprights and as suspending a series of tubes of different diameter, the employment of a'series of tubes enabling one to strike out or produce a chime.

My improved tubular resonator may be employed in houses and other places Where it would be desired to use dinner or, call bells, or in connection with church-bells wherein theblow of the hammer is controlled as to its time and duration by the hand.

The apparatus shown in Fig. l may be provided with two hammers, one for each hand, and by means of a printed card containing proper instructions even unskilled persons may sound a chime or play tunes within certain limitsthe larger the diameter of the tube the deeper the tone.

Prior to my invention I am aware that tuning-forks have been employed to emit musical sounds, and also that a piano has been provided with cylindrical bells having their side walls slotted, as in United States Patent No. 27,288; but in the said patent the so-called bell had a metallic shank extending from one end of it, making of it practically a tuningfork.

The tubes for the best results will be annealed, as thereby the quantity of the tone is greatly improved.

I claim- 1. The combination, with a metal tube, of a to hang and be free to Vibrate when struck by flexible connection to support it atalittle disa hammer. tance from its upper end, leaving the said tube In testimony whereof I have signed my name free to vibrate when struck by a hammer, subto this specification in the presence of two sub- 5 5 stantially as described. scribing witnesses.

2. An upright, A, and a bracket or arm at- W T 7 T taehed thereto, combined with a metallic tube TOMA HARRIAGTON' and with a link or loop to support it from the \Vitnesses:

said arm or bracket, the link or loop being ex SYLVES'LER It. MASON, r0 tended through the tube at a short distance LEONARD P. Hucnns,

from its upper end, thus permitting the tube Solicitors, Coventry. 

